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Snohomish County Council Adopts New ADU Regulations

Posted on Jun 11, 2021 in:
  • DBIC
  • Industry Issues
  • Building Codes
  • Advocacy

This week the Snohomish County Council unanimously adopted MBAKS priority legislation related to accessory dwelling units (ADUs). Ordinance 21-018 greatly expands the ability of property owners to build the units, including an attached and detached unit inside urban growth areas, and one unit on rural lots. Importantly, there are no owner-occupancy requirements and in urban zones, no parking requirements. Size of the units is permitted up to 1,200 square feet. An amendment was added during deliberations adding flexibility to rural ADUs, allowing them over 100 feet from the primary residence at the Director’s discretion.

Unfinished business related to ADUs was the issue of units on rural non-conforming lots. Due to legal advice, Council passed a motion to pursue that option through a separate ordinance. That matter was referred to the Council’s Planning Committee for further review. After various signature, transmittal and publication requirements, the new code can be expected to be in effect at the end of June.

Please contact dbic@mbaks.com with any questions.

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